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. 2022 Dec 15;13:7778. doi: 10.1038/s41467-022-35503-y

Fig. 2. Synthesis and material characterizations of MgHCF NCs.

Fig. 2

a Schematic illustration of the PVP-directed self-assembly of MgHCF NCs. b TEM image of the MgHCF NCs. The inset shows a typical MgHCF nanoparticle. c Hydrodynamic particle diameter distribution of MgHCF NCs suspended in an aqueous solution. d–g XRD pattern (d), FTIR spectra (e), Raman spectra (f) and XPS spectra (g) of MgHCF NCs, PVP or K3[Fe(CN)6]. h–k High-resolution elemental XPS spectra for C (h), N (i), Fe (j) and Mg (k).